15
Boost mode
when AC is
normal.
When the input voltage is lower than the
voltage regulation range but higher than
low loss point, the boost AVR will be
activated.
Battery mode
When the input voltage is beyond the
acceptable range or power failure and
alarm is sounding every 10 seconds, UPS
will backup power from battery.
Standby mode
UPS is powered off and no output supply
power, but still can charge batteries.
3-7. Faults Reference Code
Fault event
Fault code Icon Fault event
Fault code
Icon
Bus start fail
01
x
Inverter output short
14
Bus over
02
x
Battery voltage too high
27
Bus under
03
x
Battery voltage too low
28
Inverter soft start fail
11
x
Over temperature
41
x
Inverter voltage high
12
x
Over load
43
Inverter voltage Low
13
x
Charger failure
45
x
